Review on XtremeAmazing HVAC Blower Motor Resistor Regulator for Ram 1500 2500 3500 Grand Cherokee 4720278 68004241AA 68004539AA 973-020, A/C Air Conditioning Heater Fan by Ken Reiff

Replace this part if your truck only has fans off or high speed instead of medium or low speed. I used this to fix the fan in my 2001 Ram 2500, but it works on many other cars as well. The build quality appears to be OEM level. My original module only had one soldering defect, but when it got hot enough to melt the solder it had other problems. So I replaced that part with XtremeAmazing. Now it works fine.